<!-- 定义模版对象 -->
<template>
    <div class="login_container">
      <div class="login_box">
        <!-- 头像区域-->
<!--        <div class="avatar_box">
          <img src="../assets/logo.png" alt="VUE图片" />
        </div> -->

        <!-- 登陆表单区域
              ref代表当前表单引用对象
             :model 是表格中封装的对象
        -->
        <el-form ref="loginFormRef" label-width="0" class="login_form" :model="loginForm" :rules="rules" >
			<div class="ms-title">
			  <div class="logo-container">
			    <img src="../assets/Darway.png"/>
			  </div>
			</div>
          <el-form-item prop="account">
            <el-input  prefix-icon="iconfont iconuser" v-model="loginForm.account" placeholder="请输入用户名"></el-input>
          </el-form-item>
          <el-form-item prop="password">
            <el-input  prefix-icon="iconfont iconsuo" type="password" v-model="loginForm.password" placeholder="请输入密码"></el-input>
          </el-form-item>

			<el-form-item prop="code">
				<div class="verifycode_input" style="float: left;">
					<el-input prefix-icon="el-icon-info" type="text" v-model="loginForm.code" placeholder="点击刷新验证码">
					</el-input>
				</div>
				<div class="login_code" @click="refreshCode" align="right">
				 <Identify :identifyCode="identifyCode"></Identify>
				</div>

			 </el-form-item>
          <el-form-item class="btns">
             <el-button type="primary" @click="login">登录</el-button>
              <el-button type="info" @click="resetBtn">重置</el-button>
          </el-form-item>
        </el-form>
      </div>
    </div>
</template>

<!-- 定义JS变量 -->
<script>
import Identify from './identify.vue'
import BaseHeader from "../components/BaseHeader"

export default {
  components: { Identify, BaseHeader},
  data () {
    return {
		signin: false,
	  identifyCodes: '1234567890abcdefjhijklinopqrsduvwxyz',
	  identifyCode: '',
      loginForm: {
        account: '',
        password: '',
        code: ''
      },
      // 定义表单的验证规则
      rules: {
        // 定义校验用户名
        account: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 30, message: '长度在 3 到 30 个字符', trigger: 'blur' }
        ],
        // 定义校验密码
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 3, max: 30, message: '长度在 3 到 30 个字符', trigger: 'blur' }
        ],
        code: [
          { required: true, message: '请输入验证码', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
      refreshCode () {
  	                this.identifyCode = ''
  	                this.makeCode(this.identifyCodes, 4)
      },
      makeCode (o, l) {
  	                for (let i = 0; i < l; i++) {
  	                    this.identifyCode += this.identifyCodes[this.randomNum(0, this.identifyCodes.length)]
  	                }
      },
      randomNum (min, max) {
  	                return Math.floor(Math.random() * (max - min) + min)
      },
      resetBtn () {
        // this对象代表当前组件对象
        // console.log(this)
        // 实现数据重置
        this.$refs.loginFormRef.resetFields()
      },
      login () {
        // 获取表单对象之后进行数据校验
        // valid 表示校验的结果 true表示通过  false表示失败
        this.$refs.loginFormRef.validate(async valid => {
          // 如果没有完成校验则直接返回
          if (!valid) return
  
          // 如果校验成功,则发起ajax请求
          const { data: result } = await this.$http.post('/user/login', this.loginForm)
          if (result.status !== 200) return this.$message.error('用户登录失败')
          this.$message.success('用户登陆成功')
  				
          // 获取用户token信息
          const token = result.data
          window.sessionStorage.setItem('token', token)
  		// 获取用户名
  		localStorage.setItem("userName", this.loginForm.account);
          // 用户登录成功之后,跳转到home页面
          this.$router.push('/home')
		  this.signin = true
		  
        })
      },
	  
      mounted () {
        // 初始化验证码
        this.identifyCode = ''
        this.makeCode(this.identifyCodes, 4)
      }
  	
    }
  }
</script>

<!-- 防止组件冲突 -->
<style lang="less" scoped>
	
.login_container{
  background-color: #345b82;
  height: 100%;
}

.logo-container{
	margin-left: -10px;
}

.ms-title{
	margin-left: 5%;
	
}

.login_box {
  width: 450px;
  height: 430px;
/*  background-color: #FFFFFF; */
  /* 设定圆弧角*/
  border-radius: 10px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);

  // .avatar_box {
  //   height: 120px;
  //   width: 120px;
  //   border: 1px solid #EEEEEE;
  //   border-radius: 50%;
  //   padding: 10px;
  //   box-shadow: 0 0 10px #DDDDDD; /* 添加阴影*/
  //   position: absolute;           /* 绝对定位*/
  //   left: 50%;                    /* 距离左侧50%*/
  //   transform: translate(-50%,-50%);   /*回调50%*/
  //   background-color: #FFFFFF;
  //   img {
  //     height: 100%;
  //     width: 100%;
  //     border-radius: 50%;
  //     background-color: #EEEEEE;
  //   }
  // }

  .btns {
    display: flex;
    justify-content: flex-end;

  }

  .login_form {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0px 20px;
    box-sizing: border-box;
  }

  .verifycode_input{
	width: 75%;
  }

}
</style>
